Treadmill



FIG. 1 is a perspective view of a treadmill of the present invention;

FIG. 2 is a left view of the treadmill of FIG. 1;

FIG. 3 is a right view of the treadmill of FIG. 1;

FIG. 4 is a front view of the treadmill of FIG. 1;

FIG. 5 is a back view of the treadmill of FIG. 1; and,

FIG. 6 is a top view of the treadmill.

The broken lines illustrate portions of the treadmill which form no part of the claimed design. 

CLAIM The ornamental design for a treadmill, as shown and described. 